# -*- coding: utf-8 -*-#
#-------------------------------------------------------------------------------
# 建立者:        黄周云  
# Name:         test09
# Description:  序列乘法
# Author:       ASUS
# Date:         2019/1/22
#-------------------------------------------------------------------------------


print('hello'*5)                       #hellohellohellohellohello
print([20]*5)                          #[20, 20, 20, 20, 20]
print([None]*5)                        #[None, None, None, None, None]
print([]*5)                            #[]




